of blanchard



No Model.) A. 0. WEST.

PLOW,

No. 288,531. Patented Nov. 13, 1883.

NVENTOR; 62.4 mm

' Amon ms.

ADAM o. wEsr, OF

' NrTsED STATES PATENT Grace.

BLANOHARD, MICHIGAN, AssrcnoE QFTWO-THIRDS To CHARLES v. WEST, 0E SAME PLACE.

SPECIFICATION forming part of Letters mat No. 288,531, dated November 18, 1883.

Application filed August i 1853. (No model.)

To all whom, it may concern:

Be it known that I, ADAM O. WEsr, of Blanchard, in the county of Isabella and State of Michigan, have invented certain new and useful Improvementsin Plows, of which the following is a full, clear, and exact description. This invention relates to the point of a plow, including the colter and share thereof, and is designed as an appendage or sheathing to the cast-iron point of a plow, for the purpose of giving thereto good, durable steel edges, which may be sharpened as required. Such appendage not only adds to the durability of the point, causing it to last much longer than the.

ordinary cast-iron one having no such attachment, but facilitates the work of plowing, and at the same time strengthens the point generally and relieves the plow of much weight.

To these and other ends my invention consists in a detachable steel cap-point in the form of a hood or sheath, and which is separate from the share, over the forward end of which and point end of the plow it fits, together with a steel plate, forming the share and colter, for application as a cover to the cast-iron point of aplow, substantially as here inafter described.

Reference is to be had to the accompanying drawings, forming part of this specification, in which similar letters of reference indicate corresponding parts in all the figures.

Figure 1 represents a perspective view of a cast-iron plow-point having my invention applied. Fig. 2 is a perspective view of a combined share and colter plate forming part of y the invention; Fig. 3, a perspective view of the cast-iron point detached; Fig. 4, a perspective view of a detachable steel cap-point, and Fig. 5 a vertical longitudinal section of the same. p A is an ordinary cast-iron plow-point, of any desired size and shape, according to the particular pattern of plow, and which may be secured to its place by bolts, looks, or other de vices, as usual, or in any approved manner.

This cast-iron point I cover, to give increased strength, durability, and ease in the performance of its work, by an appendage or attachment, which may be applied by any black- 50 smith of ordinary skill, either to new plowpoints or to worn-out ones, at a comparatively sniall'cost. Suchis accomplished in part by applying to the point a steel covering-plate cut and bent to form the share B and colter G, which may be of any desired shape; but the share B should be made to project over the right-hand wing of the point some one and a half inch, more or less, or sufficiently to give a good, lasting steel cutting-edge, that may be sharpened, if necessary. The whole may be made from a plate mainly of triangular shape, except at its forward lip end, which lies under the detachable cap-point D, the left-hand portion of the plate being bent up to form the colter O, thefront edgeof which should be 6 sharpened. After the plate has been thus fashioned and prepared, it is fitted on the castiron point A, and may be secured by the same bolt which holds the cast point to the plow, the same first passing through the steel plate at 8, having a countersunk hole in it for the purpose, and by any number of rivets b, arranged to pass through both the steel plate and cast point, the heads of the rivets being countersunk in the plate. The steel-plate 7 5 cover to the point, forming share and colter, having been thus secured, the cap-point D is fitted over the lip end of the plate and forward end of the point. This cap-point is formed of a steel plate cut into suitable shape and bent around and welded to form a hood or sheath to the forward end of the point, and having a piece of steel, 0, welded in it at its front end, sufficiently large to provide for the cap-point being sharpened occasionally, or as often as is necessary. I furthermore harden the solid point of the cap, to give it durability; Said cap-point may be inclined a little downward, or to the landside of the plow; as shown at d, as the general run of the plow may require. It is fitted 011 or over the'plow-point by heating it and driving it on, and then allowing it to cool and contract thereon, the front solid end of it being more rapidly cooled, to harden it. Thus fitted, said cap point by 5 shrinking not onlyholds its position, but holds the front end .of the share and colter plate.

As it, is the forward end of the point of a plow which wears most rapidly, this separate and detachable steel cap piece or point is not only more durable, but it may be readily sharpened, and removed when worn and be replaced by another without disturbing the share and colter plate. The steel share and colter plate or point cover will also add materially to the durability of the point, and may be sharpened or be removed and replaced by another, thus adding materially to the durability of the plow having a cast-iron point, besides reducing weight and easing the plow in its work.

This covering of the plow-point essentially differs from other attached plow-points, which involve a peculiar construction of the plow, and which are attachments to the landside of the plow, or have the Whole of one piece of metal, forming both point-and share, attached to the mold-board by socket and clasp, and which constitute the entire point, while in my case the attachment is an independent piece, and is held to the cast point by bolts and rivets. I do not abandon or dedicate to the public any patentable feature set forth herein and not hereinafter claimed, but reserve the right to claim the same either in a reissue of any patent that may be granted upon this application or in other applications for Letters Patent that I may make. Having thus described my invention, I claim as new and desire to secure by Letters Patent The combination, with the cast-iron plowpoint A, of a steel-plate covering thereto, constructedto form both the share B and colter G, and the separate and detachable cap-point D, applied to the point and assisting to hold the share and colter in position, essentially as described.

- ADAM CLARK WVEST. Witnesses:

RODORIOK MERRILL, BYRON WINTER. 

